Triple-mast coal hoist



July 29, 19.24.

O E. BARENE TRIPLE MAST COAL HOIST Filed June 16. 1921 I/ENTOH I Airmen/Er Patented July 29, 1924.

orro n. BABENE, or BROOKLYN, ew YORK.

TRIPLE-MAST COAL HOIST.

Application. filed time is, 1921. serial no. traces.

To all whom it may concern:

Be it known that I, OTTO E. BARENE, a

citizen of the United States, residing at the city ofNew York, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Triple-Mast Coal Hoists, of

, which the following is a specification.

simple possibleflconstruction and one which requires the least amount of expenditure for maintenance and operation.

Anoth'erobject of the invention is to provide ahoisting machine .which involves a stationary mast which, because it is stationary, maybe easily and strongly built at a minimum expense, and having associated with it and controlled therefrom a bucket supporting gaff or boom, the foot of which .is pivoted and swiveled for lateral movement through over 200 as well as being adjustable vertically, both under the direct and simple action of the hoisting engine.

1 A still further object is to provide a hoisting machine comprising a stationary mast and a gaff movable with respect thereto toa maximum lateral extent and so designed that a single operator may control the filling of the bucket at any point within the range of the gaff, the. hoisting thereof to any de-. sired height within the limits of the lift of the gaff, the lateral swing of the loaded bucketin either direction within a range .of over 200, the dumping of the load, and the .return of the empty bucket for reloading from the same or any other source of supply, all simply by the control of two hoisting drums and with the utmost speed.

With the foregoing and other objects in -vie'w the invention' consists in thearrangestill for thepurpose of illustrating a practi mentand combination of parts hereinafter described andclaimed, and while the invention is not restricted to theexact detailsof construction disclosed or suggested herein,

' cal embodiment thereof, reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which- Figure 1 is a side elevation of my im: provement. j i Fig. 2 is a front elevation of the same, the gaff being indicated directly in front corresponding to the position of Fig. 1, and also by dot and dash lines being shown swung around to one side of the mast. Fig. 3 is a diagrammatic plan view indicating the unusual degree of lateral swing of the gaff with respect to a statiohary mast. v

Referring now more specifically to the drawings I show the mast vor tower cone-V struction as comprising two front members or legs 10 arranged in a substantially verti cal plane, and a rear leg 11. All of the legs merge into a common apex 12 and are suitably spaced and anchored at their feet. Any suitable diagonal or other braces 13 may be employed to stiffen the mast.

At any convenient elevation along the mast is arranged the operators platform 14- in which 2L161;l00&t6d the operating levers 15, one for his right hand and the other for his left as he faces his work. Any suitable power device including independently controlledrdrums 15 pertaining to the respective controlling levers may be employed, and the power may be steam, electricity, or any other power available. The front of the mast, that including the vertical plane of the legs, 10, for a structure for unloading. froma barge or the like, is located as close as is convenient to the dock wall 16, but as indicated in Fig. 3 the vertical plane of the front is arranged preferably at anangle of about 30 degrees from the vertical'plane of the Wall 16 when it is desired to secure the widest possible scope of delivery of the ma T ,OF

terial on the land and yet without sacrificingthe reach of the gaff to or beyond. the plane ofthe wall on the opposite side of the machine. Thebarge or other carrier for the-load, may be anchored 0r securedat any convenient place along the dock wall or'remote therefrom within the reach of the gafl V which in a practical machineflmay be from fifty-five to sixty or more feet in lengtln Obviously for the'unloadingof a barge .or

the like to cars or other receptacles 011 either side of the mast it may be preferable to arrange the front of the mast parallelto the dock. The mast may be provided with any suitable guy lines 17 as will be understood.

The gaff 18 is mounted at its lower end on a horizontal pivot 19, in turn swiveled to swing around a vertical pivot 20 in a base support 21 located at any suitable elevation along the mast and a relatively short distance in front of the vertical plane of the legs 10, so that the gaff may swing laterally in either direction through a material extent beyond said vertical plane, as well as being adapted to swing up and down in an indefinite number of vertical planes coinciding with the vertical pivot 20. As shown the swivel for the gaff is on the front end of the operators platform.

To the outer end of the is connected any suitable shackle 22 to which a pulley 23 is connected. A pair of pulleys 24 are linked tojthe upper end or apex 12 of the mast, this link being in the vertical axis of the swivel 20. to insure perfect freedom of lateral movement of the The elevation of the gafi is maintained by means of a cable 25 having one end attached at 2,6;to about the middle of the gafl and extended thence over a pulley 24, the pulley 23, and thence back over a second pulley "24: and down to any suitable point of attachment such as a cleat 27 within reach of the operator.

Depending from the outer end of the gaff is a shackle 28 in which are journaled two independent pulleys 29.

Any suitable bucket or skip may be employed, but I indicate awel'l known form of clam shell bucket 30, for the manipulation of which two cables are employed, the closing cable 331 and the auxiliary hoistingcable 32 which extend over the pulleys 29 and thence inward over a pair of pulleys 33 and 34, respectively swiveled or otherwise connected to the outer ends of a cross tree 35 mounted upon the mast at a convenient level above the operators platform and in a vertical plane somewhere to the rear of the vertical plane of the legs 10. In my practice of this invention I have found that the cross tree should be located in a vertical plane whereby-the pulleys 33 and 34 will be positioned in. the neighborhood of three feet back of the vertical plane of the swivel 20 parallel thereto, and approximately ten feet above said swivel. In the mention of these dimensions, however, I wish it to be distinctly understood that no limitation to the scope of the invention is intended thereby. In the practice of the invention as illustrated it is presumed that the loaded bucket is to be swung to the left after being elevated and so the closing cable 31 is indicated as being on the side of the mast pertaining to the operators left hand as he faces the gaif, and said closing cable is associated with the power drum 15- under the control of his left. hand lever. Both cables and both drums are operative for hoisting purposes. In the closing of the bucket the cable 31 is taken up while the cable 32 is only held idle, then both cables are taken up lifting the loaded bucket as high as desired, and then to swing the load to the operators left he maintains sufficient pressure on his left hand lever and slackens correspondingly on his right hand lever, with the result that the bucket will not only be swung toward the left but will be held shut due to the tension on the lifting cable .31. This manipulation of the bucket towardthe dumping point may be effected in 00111 bination with the hoisting action or subsequently thereto. lVhen the dumping point is reached the operator maintains a firm pressure on the right hand lever and slackens on the closing cable, thereby permitting the load to open the bucket automatically and promptly initiating the return of the bucket toward the right for reloading, due to the superior tension on the cable 32 at this time. It will be understood that for swinging the loaded bucket to the righ insteadof to the left as described, the power cables 31 and 32 will be reversely connected to the bucket, so that the superior tension will be maintained on cable 31 while swinging the loaded bucket.

One of the principal features of this vention consists of a roller 36 journaled, as indicated, mainly above the level of the cross tree 35, in a vertical plane perpendicular to the vertical plane ofthe front of the mast, and with its axis inclined at an angle of about 30 from the vertical, the lower outer end of the roller being approximately as far in front of the vertical axis of the gafi as the pulleys 33 and 34 are to the rear thereof. The length of the roller 36 is greatenough to insure that it will be engaged by either of thecables 31 and 32 when the is swung to the rightor to the left and within all usual or reasonable vertical ad justments of the gaff. I11 other words, the roller lies in the vertical plane midway be tween the planes of the pulleys '33 and 34= and in the path of either of the cables 31 or 32 that is caused to approach it due to the lateral swing of the gaff. This roller 36 is preferably made concave so as to the better insure proper cooperation therewith of either of the cables when. the gaff is adjusted at or near either its upper or lower practical operative limits, it' being remembered that the gaff will be ordinarily adjusted so'as to occupy a position somewhere intermediate of its horizontal and upright positions;

For its greatest reach outward from the vertical axis of thepivot 20 the'gaff will be lowered toward its horizontal position, and to accommodate the same for the hoisting of a load located close to the vertical axis of the swivel 20 the gaff will be elevatedtoward its vertical position so that the bucket will hang from the shackle 28 closer to the mast. In order to adjust the gafi vertically, all the operator has to do is to maintain tension on both cables 31 and 32 until the bucket reaches the shackle pulleys 29 and then a continued lifting action of both cables will lift the gaff by the power of the engine as high as desired. At this time the operator draws down the slack of the cable 25 and snubs it around the cleat 27 or any other equivalent device, thus fastening the gaff at the desired elevation. The lowering of the gaff when necessary will be effected by a reverse operation, the weight thereof being controlled bythe engine while the operator pays out the cable 25.

With respect to the swinging of the gaff laterally from its mid position as shown in full lines in Fig. 2, the location of the guide pulleys 33 and 34 being well to the sides of the mid vertical plane of the gaff at this time, it is obvious that a superior tension on either of the cables 31 and 32 will initiate the side movement of the gaff in that direction, a corresponding slackening of the other cable being permitted. Moreover, this side swing due to such superior tension will be effective to contlnue the same to a con- I siderable degree in excess of 90 from the said midposition due to the fact that the guide pulley then effective is so far back of the vertical axis of the swivel 20. hen

the gaff thus is caused to approach the maximum limit of side swing the cable having the inferior tension will be brought against the roller 36, which may be termed a fulcrum roller, and so when the gaff is to be returned toward or beyond said mid position superior tension being applied to the cable in contact at that time with the fulcrum roller and so applied to the outer end of the gaff from a point on said roller far in front of the vertical axis of the gaff will 'act directly upon the gaff to swing it late-r ally'as desired.

While I have indicated in Fig. 3 that the mast is erected at such an angle to' the wharf line as to provide for the principal dumping to the left, it is obvious that the same principle of construction and operation would result if it were erected atian angle toward the right. With respect to the from which theload is to be taken the un loading operation may progress in some cases without making any'further adjustment up or down of'the gaff. Again, janother strongpoint of advantage in this conin the mean time it is impossible to unload I the boat by the use of other types of mast and gaff hoisting rigs.

I claim:

1. In a hoisting device, the combination of an upright support whose front lies substantially in a vertical plane, a gaff pivoted at one end upon said support close in front of said plane and movable up and down as well as laterally in either direction with respect toiits pivotal support, connections between the top of the support and the remote end of the gaff for holding it at a predetermined elevation and for permitting it to swing laterally as aforesaid, a load carrying member, a pair of guide members on said support, located above the point of' pivotal support for the gaff and at the rear of the aforesaid vertical plane of the support front, a pair of independently controllable power cables operating over said guide members and connected to said load carrying member, and a fulcrum member journaled upon said upright support wholly in front of said support plane and in a vertical plane perpendicular to the front plane aforesaid and above said guide members and having its axis inclined at an oblique angle to the plane of the support front, said fulcrum member being located to co-operate with one of said cables for returning the load carrying member to filling I position after having been swung laterally for dumping.

2. In a hoisting device, the combination flexible connection. acting between the gaff and the support to determine the elevation of the gafi', a load carrying member, power means acting over the support and gaff to the load carrying member and adapted by thedirect lifting of the load carrying member to elevate the gaff, and means cooperating with the power means to enable the moveme ntsof thg gafi. A device as S iQrth 1 2 which the power qmpriges two 5 power cables, and the mezmg qowpg ra ting therewith consists of a rollgr jp urgp led in a ertical plane upo g t hg'sup popt and lyipg power mgang to, clilfec tly QQlltlTQl latgggal alw y v in th Path of a ea on of the po-vyg gableg irrespegtive of the elevation Of h g i im ny wh re I flx y gna ture.

,OT'IO E. BABENE. 

